While trying to solve the problem, the following message appears: error in cascade: zero coefficient on the dependent side of an equation dependent node: 333046 direction:1.
The modeling seems correct to me, so I don’t understand why. Thanks for your help.
Agazzotti
Why do you have “Split compound mesh” enabled ? If you keep it disabled (default setting), you won’t need to use tie constraints.
With your current setup, the one large merged tie constraint seems to be causing the issue. If you want to use ties, you should break it into more individual constraints.
I meshed the model as a compound part and simplified the mesh a little (mad it a little more course and not second order) and the analysis ran quite happily
Yes, the merged tie constraint is the issue (although the node mentioned in the error message doesn’t seem to belong to it). This is a typical overconstraint message in CalculiX. Master/slave selection should be done carefully and tie constraints shouldn’t overlap (the Search Contact Pairs can help, but won’t always do it right). However, it’s usually easiest/best to just create a compound part (with continuous mesh).
Problem solved
Thanks for your help
